3777069 - RMA crashes with Error 'Native memory allocation (mmap) failed to map <value> bytes' for SRS

• In an SAP ASE HADR environment, RMA fails to start or repeatedly terminates after startup.
• The following errors may be observed from RMA crash trace:
  

    ***Warning: INFO: os::commit_memory(0x0000xxxxxxx00000, <value>, 0) failed; error='Not enough space' (errno=12)
    [M.Ns][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 0k, detached.
    
    # There is insufficient memory for the Java Runtime Environment to continue.
    # Native memory allocation (mmap) failed to map <value> bytes for committing reserved memory.. Out of swap space or heap resource limit exceeded (check with limits or ulimit)?
    # An error report with more information is generated,
  
  

    [M.Ns][warning][os,thread] Attempt to protect stack guard pages failed (0x0000xxxxxxx00000-0x0000xxxxxxx04000).
    [thread PID also had an error (e0000004)
    Details: pc=0x0000000000000000 siginfo: <null>]

  
  
• The operating system shows a low value for /proc/sys/vm/max_map_count , for example:
  cat /proc/sys/vm/max_map_count
  65530

• SAP Adaptive Server Enterprise (ASE) all versions with Always-on Option (HADR)
• Linux OS

RMA, HADR, SAP ASE, max_map_count, memory mapping, Out of memory, RMA startup failure, OOM, crashed, down, crashing, trace , KBA , BC-SYB-REP-SAP , Replication with SAP Suite / SAP BW , BC-SYB-REP , Sybase Replication Server (standalone) , Problem